'Even something as simple as telling the difference between an open door and a window can be tricky for a robot,' says Gates.

盖茨说：“即使是像分辨开着的门和窗户这样简单的事情，对机器人来说也是很棘手的。”

youdao

The government's policy is an open door to disaster.

政府的政策为灾难敞开了大门。

《牛津词典》

An insecure computer system is an open door to criminals.

不安全的电脑系统给罪犯提供了可乘之机。

《牛津词典》

"There was just such an open door even the least of us could have a vision,"

VOA: standard.2009.08.15

And it just gonna be... I really look forward to having someone who I can keep speaking to, keep learning from, and keep sharing my ideas with, and keep having that open, just an open door.

将会是，我非常期待,能够有一个像他这样可以一直聊天，一直学习，分享我们的看法，一直可以对他敞开心门。

普林斯顿公开课 - 人性课程节选

He's, Andy is his first name. He's, as well very likeable, very approachable. He has an open door policy,

安迪是他的名。他也很讨人喜欢，非常平易近人。他主张办公室的门一直要敞开着，

有印象的教授 - SpeakingMax英语口语达人

But our longstanding tradition of being an open door for innovation is at risk.

FORBES: Stingy Immigration Stifles U.S. Innovation

That wouldn't be good, so we do want to have an open door policy.

BBC: Vicar replacing murdered John Suddards tells of her hopes

If you pushed on an open door in space, it would push you in the opposite direction.

CNN: Kepler or not, we'll find life in space